Commit | Line | Data |
---|---|---|
7019cc2d RA |
1 | #ifndef _ASM_X86_BIOS_H |
2 | #define _ASM_X86_BIOS_H | |
3 | ||
4 | /* | |
5 | * BIOS layer definitions. | |
6 | * | |
7 | * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <linux/rtc.h> | |
25 | ||
26 | #define BIOS_FREQ_BASE 0x01000001 | |
27 | ||
28 | enum { | |
29 | BIOS_FREQ_BASE_PLATFORM = 0, | |
30 | BIOS_FREQ_BASE_INTERVAL_TIMER = 1, | |
31 | BIOS_FREQ_BASE_REALTIME_CLOCK = 2 | |
32 | }; | |
33 | ||
34 | # define BIOS_CALL(result, a0, a1, a2, a3, a4, a5, a6, a7) \ | |
35 | do { \ | |
36 | /* XXX - the real call goes here */ \ | |
37 | result.status = BIOS_STATUS_UNIMPLEMENTED; \ | |
38 | isrv.v0 = 0; \ | |
39 | isrv.v1 = 0; \ | |
40 | } while (0) | |
41 | ||
42 | enum { | |
43 | BIOS_STATUS_SUCCESS = 0, | |
44 | BIOS_STATUS_UNIMPLEMENTED = -1, | |
45 | BIOS_STATUS_EINVAL = -2, | |
46 | BIOS_STATUS_ERROR = -3 | |
47 | }; | |
48 | ||
49 | struct uv_bios_retval { | |
50 | /* | |
51 | * A zero status value indicates call completed without error. | |
52 | * A negative status value indicates reason of call failure. | |
53 | * A positive status value indicates success but an | |
54 | * informational value should be printed (e.g., "reboot for | |
55 | * change to take effect"). | |
56 | */ | |
57 | s64 status; | |
58 | u64 v0; | |
59 | u64 v1; | |
60 | u64 v2; | |
61 | }; | |
62 | ||
63 | extern long | |
64 | x86_bios_freq_base(unsigned long which, unsigned long *ticks_per_second, | |
65 | unsigned long *drift_info); | |
66 | extern const char *x86_bios_strerror(long status); | |
67 | ||
68 | #endif /* _ASM_X86_BIOS_H */ |